Remove the brake disc, wash it thoroughly with detergent and take alcohol bubbles. Then grind off a thin layer with sandpaper. The brake discs are also thoroughly cleaned, and then regular patterns are re-printed with sandpaper. Wipe the brake disc repeatedly with anhydrous ethanol. The ethanol volatilizes quickly. Now the company mainly produces and processes brake discs for various large passenger cars and heavy trucks. It can be processed and customized according to different requirements of customers. Brake disc and brake disc washer products are exported to domestic and foreign markets, and are highly praised by customers.